Would a Nitrogen Atom in Venus's Atmosphere, Whose Temperature Is

question 16

Multiple Choice

Would a nitrogen atom in Venus's atmosphere, whose temperature is 740 K, eventually escape into outer space? Note that a nitrogen atom has a mass that is 14 times that of a hydrogen atom.Recall that atoms eventually will escape if their average velocity is greater than 1/6 times the escape velocity of the planet.The escape velocity of Venus is 10 km/s.For comparison, a hydrogen atom has an average velocity of 2.5 km/s at a temperature of 300 K.

• A) The average velocity of nitrogen atoms is 0.4 km/s, and nitrogen does not escape.
• B) The average velocity of nitrogen atoms is 1.0 km/s, and nitrogen does not escape.
• C) The average velocity of nitrogen atoms is 1.0 km/s, and nitrogen escapes.
• D) The average velocity of nitrogen atoms is 4.5 km/s, and nitrogen does not escape.
• E) The average velocity of nitrogen atoms is 4.5 km/s, and nitrogen escapes.

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